Basically like Public High School, but worse. You have to wear itchy, uncomfortable uniforms that make you look like a loser when you are out in public. Also, everyone in the school is the same gender, so if you are a boy, you get to hang out with those sweaty bastards for 4 years. You have 0 chance over ever having fun at a Catholic High school. Half of your classes are taught by priests or nuns, and they will expel your ass for even the tiniest thing. Learning religion is a crock. Unless you plan on becoming a priest when you graduate, these classes are useless. All Catholic schools were built over 9000 years ago, and only have enough room for 300 kids, but there's 1200 fuckers scurrying through the halls just to get to their next class.